<template>
	<section>
		<!--工具条-->
		<el-col :span="24" class="toolbar" style="padding-bottom: 0px;">
			<el-form :inline="true">
				<el-form-item>
					<el-input v-model="keyword" placeholder="请输入名字"></el-input>
				</el-form-item>
				<el-form-item>
					<el-button type="warning" v-on:click="keywordQuery">查询</el-button>
				</el-form-item>
        <el-form-item>
          <el-button type="primary" @click="handleAdd">新增</el-button>
        </el-form-item>
			</el-form>
		</el-col>

		<!--列表v-loading="listLoading"-->
		<el-table :data="tableDatas" v-loading="listLoading" @selection-change="handleSelectionChange" highlight-current-row
			style="width: 100%;">
			<!--多选框-->
			<el-table-column type="selection" width="55">
			</el-table-column>
			<el-table-column type="index" width="70" label="序号">
			</el-table-column>
			<el-table-column prop="name" label="角色名称" width="150">
			</el-table-column>
			<el-table-column prop="sn" label="角色编号" width="150">
			</el-table-column>
      <el-table-column label="角色权限" width="300">
        <template slot-scope="scope">
          {{scope.row.dbPermissions.map(obj => obj.name).toString()}}
        </template>
      </el-table-column>
      <el-table-column label="角色菜单" width="300">
        <template slot-scope="scope">
          {{scope.row.dbMenus.map(obj => obj.name).toString()}}
        </template>
      </el-table-column>
      <el-table-column label="操作">
        <template slot-scope="scope">
          <el-button size="small" @click="handleEdit(scope.row)">编辑</el-button>
          <el-button type="danger" size="small" @click="handleDel(scope.row)">删除</el-button>
        </template>
      </el-table-column>
		</el-table>

		<!--工具条-->
		<el-col :span="24" class="toolbar">
      <el-button type="danger" :disabled="this.sels.length === 0" @click="handlePatchDel">批量删除</el-button>
			<el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="currentPage"
				:page-sizes="[5, 10, 15]" :page-size="pageSize" layout="total, sizes, prev, pager, next, jumper"
				:total="totals" style="float:right;">
			</el-pagination>
		</el-col>

    <el-dialog title="保存用户" :visible.sync="saveFormVisible" :close-on-click-modal="false">
      <el-form :model="saveForm" label-width="80px" :rules="saveFormRules" ref="saveForm">
        <el-form-item label="角色名称" prop="name">
          <el-input v-model="saveForm.name" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="角色编号">
          <el-input v-model="saveForm.sn" auto-complete="off"></el-input>
        </el-form-item>
        <el-form-item label="角色权限">
          <template>
            <el-select v-model="saveForm.permissions" clearable multiple placeholder="请选择">
              <el-option v-for="item in options" :label="item.name" :value="item.id">
              </el-option>
            </el-select>
          </template>
        </el-form-item>
        <el-form-item label="角色菜单">
          <el-cascader style="width: 300px"
                       v-model="saveForm.menus"
                       :options="menuTree"
                       :props="{
					checkStrictly: true,
                    label: 'name',
                    value: 'id',
                    emitPath: false,
                    multiple: true}"
                       clearable>
          </el-cascader>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button @click.native="saveFormVisible = false">取消</el-button>
        <el-button type="primary" @click.native="saveSubmit">提交</el-button>
      </div>
    </el-dialog>
	</section>
</template>

<script>

export default {
	data() {
		return {
			//1.分页查询相关数据
			totals: 0,//总记录条数
			currentPage: 1,//当前页,要传递到后台的
			pageSize: 5, //每页显示多少条
			tableDatas: [], //当前页数据
			listLoading: false,//加载框

			//2.高级查询相关数据
			keyword: '',

      //3.删除相关数据

      //4.批量删除相关数据
      sels: [], //存储多选记录

      //5.添加和修改相关数据
      saveFormVisible: false,
      saveForm: {
        id: null,
        name: '',
        sn: '',
        permissions: [],
        menus: []
      },

      //6.添加和修改校验规则-表单项校验
      saveFormRules: {
        name: [
          { required: true, message: '请输入角色名称', trigger: 'blur' }
        ]
      },

      //7.保存权限和菜单
      options: [],
      menuTree: [],

    }
	},
	methods: {
		//1.分页查询相关方法
		//1.1.获取列表数据
		getTableData() {
			//1.组装参数
			let params = {
				currentPage: this.currentPage,
				pageSize: this.pageSize,
				keyword: this.keyword
			}
			this.listLoading = true;
			//2.发送请求
			this.$http.post("/role",params).then(res=>{
				this.tableDatas = res.data.list;
				this.totals = res.data.total;
        console.log(this.tableDatas);
				this.listLoading = false;
			 })
		},
		//1.2.选择第几页时触发
		handleCurrentChange(currentPage) {
			this.currentPage = currentPage;
			this.getTableData();
		},
		//1.3.选择每页显示记录条数时触发
		handleSizeChange(pageSize) {
			this.pageSize = pageSize;
			this.getTableData();
		},

		//2.高级查询相关方法
		keywordQuery() {
			this.currentPage = 1;
			this.getTableData();
		},


    //3.删除相关方法
    handleDel(row) {
      this.$confirm('确定要删除当前数据吗?', '温馨提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {//点确定走这里
        let id = row.id;
        this.$http.delete("/role/"+id).then(res=>{
          if(res.data.success){
            this.$message.success("删除成功");
            this.getTableData();
          }else{
            this.$message.error("系统繁忙，请稍后重试 - 500");
          }
        }).catch(res=>{
          this.$message.error("系统繁忙，请稍后重试 - 400/404");
        })

      }).catch(() => {

      });
    },


    //4.批量删除相关方法
    //4.1.选项改变时触发
    handleSelectionChange(val) {
      this.sels = val;
    },
    //4.2.批量删除
    handlePatchDel() {
      var ids = this.sels.map(obj => obj.id);
      this.$confirm('确定要删除选中数据吗?', '温馨提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).then(() => {//点确定走这里
        this.$http.patch("/role",ids).then(res=>{
          if(res.data.success){
            this.$message.success("删除成功");
            this.getTableData();
          }else{
            this.$message.error("系统繁忙，请稍后重试 - 500");
          }
        }).catch(res=>{
          this.$message.error("系统繁忙，请稍后重试 - 400/404");
        })

      }).catch(() => {
      });
    },

    //5.添加和修改相关方法
    //5.1.点击添加弹出对话框
    handleAdd() {
      this.saveForm = {
        id: null,
        name: '',
        sn: '',
        permissions: [],
        menus: []
      };
      this.getPermissions();
      this.getMenuTree();
      this.saveFormVisible = true;
    },
    //5.2.点击修改弹出对话框
    handleEdit(row) {
      this.saveForm = Object.assign({},row); //深拷贝 - 浅拷贝
      this.getPermissions();
      this.getMenuTree();
      //用户回显当前角色的权限和菜单
      this.saveForm.permissions = this.saveForm.dbPermissions.map(obj=>obj.id);
      this.saveForm.menus = this.saveForm.dbMenus.map(obj=>obj.id);

      this.saveFormVisible = true;
    },
    //5.3.提交表单数据操作数据库
    saveSubmit() {
      //表单校验：只要有一个表单项校验失败，都返回false。只有所有表单项都校验成功，才会返回true
      this.$refs.saveForm.validate((valid) => {
        if(valid){
          this.$http.put("/role",this.saveForm).then(res=>{
            if(res.data.success){
              this.$message.success("操作成功");
              this.getTableData();
            }else{
              this.$message.error("系统繁忙，请稍后重试 - 500");
            }
            this.saveFormVisible = false;
          }).catch(res=>{
            this.$message.error("系统繁忙，请稍后重试 - 400/404");
          })
        }else{
          this.$message.error("表单校验失败");
        }
      });
    },

    getPermissions(){
      this.$http.get("/permission").then(res=>{
        this.options = res.data;
      })
    },
    getMenuTree(){
      this.$http.get("/menu/menuTree").then(res=>{
        this.menuTree = res.data;
      })
    },


	},
	mounted() {
		this.getTableData();
	}
}

</script>

<style scoped></style>
